Feeding mechanism for arc lamps



Patented Ma y 12, 1925.

UNI'IED STATES PATENT OFFICE.

MAURICE J. WOHL, OF NEW YORK N. Y. ASSIGNOR T M. J. WOHL & CO. ING. OF LONG ISLAND CITY, NEW YORK, A COR-PORATIO'N 035 NE'W YORK.

FEEDING MEGIIANISM FR- ABC LAMPE.

Application fi1ed June 15, 1821. Serial N0. 477,730.

T0 all 107mm z't may concem:

Be it known that I, MAUR1CE J. VV01-IL, a citizen of the United States, and residing at New York city, in the eounty 012 Queens 5 and Stute 015 New York, have invented 0erlait1 new and useful I1nprovements in Feeding Mechanism for Are Lampe, of Whioh tl1e following is a specification.

This invention relates t0 improve1nents in the feeding 1nechanisn1 for multiple arc lamps and especially t0 the equalizing means employed therefor. It e1nbodies partieularly improve1nents 0f the feeding mechanism shown in the United Stabes Patent 17'0r multiple am lamps N0. 1235271 granted to me on July 31, 1917.

It is tl1e objeeb of the invention to improve the auto1natio feeding action of the arc lam p by a novel equalizing arrange1nent.

The details of the invention Will loe n1ore fully deseribed in the following specifieation, illustrated by the aeco1npanying drawings for1ning a part thereof and finally ses forth in tl1e appended claims.

In the drawings:

.Fig. I is an eleva'tion otE che fe'eding mech anis1n of a duplex a10 la1np, partly in section on the line II 0f Fig. II.

Fig. II is a side elevation on the line 30 II*II of Fig. I.

Fig. III is an enlarged detail 01' the equalizing :urangement shown in Fig. II.

Fig. IV is a plan 011 the line IVIV of Fig. III.

Fig. V is a sectional side Figs. III and IV V*V of Fig. IV.

Fig. VI shows the parts of Fig. V when fhe lever 33 is in extreme angular position.

Fi VII ShOWS a type of eonstruotion embodying a 1nodification 01 the improVement shown hy Fig. III.

Fig. VIII ie a side olevalion o'l V0li0 Wltl1 the equalizing; springe.

Sin1ila1 eharacters 01f: reference indieate si1nilar parke throughou l'he various views.

The 1wesenfinvention relates parlicularly to improvenmnts in the Feeding mechanisn shown in the patent mentioned aboVe and 59 the charaeters of tl1e principal elements of the present speeificati0n c0rrespond with those of the earlier patent.

Referring to Figs. I and II of the draw- 35 elevation of partly in section 011 line ings, 14 is tl1e solenoid of a duplex Whieh operates the lan1inated eore 20. 'lhe lower end 0f 0010 29 carries a yoke Which consisas 0f a horizontal, flat and rigid bar, whose ends 37 a1e be'nt vertically dmvnward and provided witl1 slots 38 (See Fig. VIII). These slots acconnnodate the projecting ende 39 of three flat springe, 01 Which the lower two forn1 a laminated eouple 31 and are fastened by means o1 a vertical shouldered pin 40 and cotter pin 41 to dash pot 15 anal hold the same in axial alinement with c01e 29. The fhird, uppermostspring 30 is fastened by 1neans 0f rivets 1 t0 horizontal cross bar 33 Which extends perpendieularly to yoke 32 und holde the center of gravity of this bar likewise in axial alinement with core 29 und dash pot 15. The free ende of cotter pin 41 are bent upward after insertion, t0 embrace the edges of springe 31 and t0 prevent rotation of the dash pot about its vertieal axis. 'Ihe plunger 20 of dash pot 15 is held in stationary position und axial alinement by means 0f 10d 21 011 bar 22 and this bar is suspended by rode 28 fron1 the supporting plate 27 0f solenoid 14. The forked outer ende of er0ss bar 33 hold the longitudinally expandible clutclv lifting loa1s 36 Whose upper forked ende guide the lower end 0f 35. The clutehes 10 eonsist o'f two parallel and normally horizontal plates. The heel of tl1e upper plate is hinged to bar 36 and to tw0 small verti- 0al plates 11 by a cotter pin. 'Ihe lower elutch plate is hinged ab its heel to plates 11 by a second cotter pin. The plates are separated from eaeh other by a projeet-ion 12 011 the lower face 01? the upper plate near its toe end, in such a manner tl1at the plates always remain parallel t0 eaeh other. The .ca1'b0I1-h0-ldihg rods 17 are held b these clulehes in fanulliar manne1r. In Fig. VII .1 modified erossbar suspeusion 18 shown; in Ihis construction bhe bar 33 i. provided Wll'l1 a cenlt1al aperture whieh aceonnnodates lhe neck part 0f dash pot 15 somewhar l0osely aud lhe dash pol is suspended m two ]amb nations in l:he same maune: as proviously desoribed.

T0 illustrate the advantages gained by the invention lt should be stated thac in duplex ar0 lamps lt is practloally unatcainable, even with the highest mechanieal preeision nmgnctic operating 111eans in axial vertical alinement with each other, a resilient o1nt between saicl clash pot and said magnetic means, said joint consisting of a flat horizontal bar having its ends bent vertically, flat springs lxelcl by saicl ends parallel to saicl bar, a stucl rotatably l1elcl in said springs t0 f01'111 an axial pivot f01 saicl dasl1 pot ancl a transverse cotter pin penetrating an extension of saicl clasl1 pot ancl said stud 10 and forming means to prevent the rotative movement of saicl clash pot wlxen its ends are bent upwarcl t0 embrace saicl springs.

MAURICE J. WOHL. 

